Lee W.Z.Shu G.W.Wang J.S.Shen J.L.Lin C.A.Chang W.H.Ruaan R.C.Chou W.C.Lu C.H.Lee Y.C.2019-05-132019-05-13200509574484https://scholars.lib.ntu.edu.tw/handle/123456789/407452Recombination dynamics of photoluminescence (PL) in colloidal CdSe/ZnS quantum dots (QDs) were studied using time-resolved PL measurements. The PL intensity shows a biexponential decay at 9 K, consisting of a fast component (?1 ns) and a slow component (?6.3 ns). Based on the emission-energy and temperature dependence of carrier lifetimes, we suggest that the fast and slow PL decay of colloidal CdSe/ZnS QDs originates from recombination of the delocalized carriers in the internal core states and the localized carriers at the interface, respectively. ? 2005 IOP Publishing Ltd.journal article10.1088/0957-4484/16/9/0182-s2.0-23444450712https://www.scopus.com/inward/record.uri?eid=2-s2.0-23444450712&doi=10.1088%2f0957-4484%2f16%2f9%2f018&partnerID=40&md5=1b73c1e3d31588d681c90b7affe70c4a